REMOTE CONTROL MULTI OPERATING ELECTRIC POWER METER

摘要

a voltage and current sensing and multiplying section (10) for sensing and multiplying the load voltage and current, and for generating a momentary power (P); a signal processing section (20) for amplifying the momentary power (P) to a double; a converting section (30) for converting the momentary power (P) to proper pulses; a modem (50) for modulating and demodulating data signals; a microprocessor unit (40) for controlling the system in accordance with the output of the modem (50); an E square PROM (70) for storing the integrated data; a time checking section (80) for counting the real time; a battery back-up section (90) for supplying power in an emergency; a display (60) for displaying the time and the integrated data; and a power circuit (110) for rectifying an ac power to supply it to the respective sections of the system.